CN102635798A - LED plane light source - Google Patents
LED plane light source Download PDFInfo
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- CN102635798A CN102635798A CN2012100974264A CN201210097426A CN102635798A CN 102635798 A CN102635798 A CN 102635798A CN 2012100974264 A CN2012100974264 A CN 2012100974264A CN 201210097426 A CN201210097426 A CN 201210097426A CN 102635798 A CN102635798 A CN 102635798A
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Abstract
The invention discloses an LED (light-emitting diode) plane light source which comprises a reflective plate, a diffusion plate, an LED lighting source and a frame, wherein a plurality of light guide spots are printed on the reflection surface of the reflective plate, the diffusion plate is positioned on one side of the reflection surface of the reflective plate, a clearance is left between the diffusion plate and the reflection surface, the LED lighting source is arranged in the frame and positioned on the side edge at the clearance, light is emerged in the clearance from the side edge, reflective light can be diffused to all angles and shot out from the front side of the clearance when light is shot on the light guide spots on the reflection surface so as to be capable of converting a linear light source into a planar light source, the reflective plate can guide light to be reflected into the clearance except for providing the light guide spots so as to be used for improving light utilization efficiency and effectively preventing glare through the diffusion plate, therefore, the LED plane light source can emit uniform and soft light, is high in light emission efficiency; in addition, compared with the high cost of a light guide plate in the prior art, the LED plane light source is not provided with the light guide plate and leads the light guide spots to be printed on the reflective plate, so that the structure and technology costs are lower, while the effects are the same.
Description
Technical field
The invention belongs to photoelectric field, be specifically related to a kind ofly to can be used for throwing light on, the LED planar light source of display backlight module or lamp box etc.
Background technology
By extensive popularization, the application of LED lamp aspect normal lighting and display in recent years more and more widely with advantages such as its power saving, brightness height, long service life, anti-seismic performance are good for LED (Light Emitting Diode, light emitting diode) technology.Commonplace utilization like the LED lamp panel; Promptly in a lampshade, be array-like a plurality of LED lamp holders of arranging; And the corresponding driving circuit is set in lampshade, though this structure is simple and practical, the LED lamp panel adopts straight-down negative LED light emitting source form; More dazzling, the light uniformity of sending not good (uniformity is less than 70%).So; There is the dealer to develop one type of LED plane lamp; The parts that such LED plane lamp is plane and the inside also all are plane, mainly are reflecting plate, LGP and the diffuser plates of mounting plane shape successively in a base, and in base plate and in the side edge of LGP, LED lamp bar are installed; Light reaches the purpose that improves the uniformity through repeatedly reflecting under the acting in conjunction of reflecting plate and LGP, and effectively prevents dazzle through diffuser plate.Can know by said structure and principle; The core of this type LED plane lamp is that the effect through LGP is converted into area source with line source; The LGP of prior art is acrylic (PMMA) sheet material that utilizes optical grade; Then with having the high reflectivity and the printing ink of extinction not, leaded light point in the printing of the acrylic sheet material bottom surface of optical grade.The light that utilizes optical grade acrylic sheet material to draw to send from lamp is in the stop on optical grade acrylic sheet material surface, and when light was mapped to each leaded light point, reverberation can destroy conditioned reflex by the positive ejaculation of LGP then toward all angles diffusion.Through various densitys, leaded light point not of uniform size, can make the LGP uniformly light-emitting, and in the purposes of the reflector plate that is used of the LGP back side light reflected back LGP that is bottom surface of light guide plate is exposed, be used for improving the service efficiency of light.Structure and principle through above-mentioned prior art LGP can be known; Leaded light point on the LGP of prior art is directly to be printed on the bottom surface of LGP; This technology is very difficult in practical operation, and yield is lower, and optical grade acrylic sheet material price is more expensive; Therefore cause the LED plane lamp cost of prior art high, hindered its application to a certain extent, promoted and development.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of LED planar light source, this LED planar light source can be converted into area source with line source, realize flat luminous, and luminous even and soft, again and cost low, simple in structure, easy to implement.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of LED planar light source; Comprise reflecting plate, diffuser plate, LED light emitting source and frame; Said reflecting plate has two relative surfaces and is respectively reflecting surface and the back side, is printed with some leaded light points on the reflecting surface of said reflecting plate, and said diffuser plate is positioned at the side that said reflecting plate has reflecting surface; And there is the space between said diffuser plate and the said reflecting surface; Said reflecting plate, space and the diffuser plate that is printed with leaded light point forms a light softening structure, and said light softening structure is fixed in the said frame in its lateral edges place, and said LED light emitting source is arranged in the said frame and is positioned at the side edge in said space.The light that the LED light emitting source sends is injected into said space from side; When light was mapped to each leaded light point on the reflecting surface of reflecting plate, reverberation can destroy conditioned reflex and penetrate by said space is positive toward all angles diffusion then; Can line source be converted into area source; Reflecting plate can also be used for improving the service efficiency of light with in the said space of light reflected back except leaded light point is provided, effectively prevent dazzle through diffuser plate; Therefore LED planar light source of the present invention can send even and soft light, and luminous efficiency is high.And for prior art LGP expensive, the present invention does not use LGP and the leaded light point is printed in the structure and the technical costs of reflecting plate lower, and effect is identical.
The present invention for the further technical scheme that solves its technical problem and adopt is:
Preferably, except a side that is provided with the LED light emitting source, all the other inboards all are provided with reflector plate in the inboard of said frame, and reflector plate is used to increase the service efficiency of light, prevent that light from being absorbed by frame.
Preferably, also be provided with base plate, said base plate is superimposed in the back side of said reflecting plate, and said base plate is in its side edge is fixed in said frame.Certainly, also said base plate can be set, the intensity of visual reflex plate and deciding can be omitted said base plate when the intensity of reflecting plate is suitable.
Preferably, said LED light emitting source is a LED lamp bar.
Preferably, said LED lamp bar is provided with at least one, and said LED lamp bar is arranged at the side edge of the illuminating part of said light softening structure side edge and LED lamp bar corresponding to said space.
Preferably, said leaded light point is made up of printing ink.
The invention has the beneficial effects as follows: LED planar light source of the present invention, comprise reflecting plate, diffuser plate, LED light emitting source and frame, be printed with some leaded light points on the reflecting surface of reflecting plate; Diffuser plate is positioned at the side that reflecting plate has reflecting surface, and has the space between diffuser plate and the reflecting surface, and the LED light emitting source is arranged in the frame and is positioned at the side edge in space; The light that the LED light emitting source sends is injected into the space from side, and when light was mapped to each leaded light point on the reflecting surface of reflecting plate, reverberation can be toward all angles diffusion; Destroying conditioned reflex then penetrates by the space is positive; Can line source be converted into area source, reflecting plate can also be used for improving the service efficiency of light with in the light reflected back space except leaded light point is provided; Effectively prevent dazzle through diffuser plate again; Therefore LED planar light source of the present invention can send even and soft light, and luminous efficiency is high, and for prior art LGP expensive; The present invention does not use LGP and that the leaded light point is printed in the structure and the technical costs of reflecting plate is lower, and effect is identical.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below through specific instantiation the specific embodiment of the present invention is described, the personage who is familiar with this skill can understand advantage of the present invention and effect easily by the content that this specification disclosed.The present invention also can other different mode implement, and, not being contrary under disclosed category, can give different modifications and change that is.
Embodiment: a kind of LED planar light source; Comprise reflecting plate 2, diffuser plate 4, LED light emitting source 5 and frame 6; Said reflecting plate 2 has two relative surfaces and is respectively reflecting surface and the back side; Be printed with some leaded light points 21 on the reflecting surface of said reflecting plate; Said diffuser plate 4 is positioned at the side that said reflecting plate 2 has reflecting surface, and has space 3 between said diffuser plate 4 and the said reflecting surface, and said reflecting plate 2, space 3 and the diffuser plate 4 that is printed with leaded light point forms a light softening structure; Said light softening structure is in said frame 6 is fixed at its lateral edges place, and said LED light emitting source 5 is arranged in the said frame 6 and is positioned at the side edge in said space 3.
Except a side that is provided with LED light emitting source 5, all the other inboards all are provided with reflector plate 7 in the inboard of said frame 6, and this reflector plate is used in the light reflected back space, to increase the service efficiency of light, prevent that light from being absorbed by frame.
Also can be provided with base plate 1 according to the intensity needs, said base plate 1 is superimposed in the back side of said reflecting plate 2, and said base plate 1 is in its side edge is fixed in said frame 6.Certainly, also said base plate can be set, the intensity of visual reflex plate and deciding can be omitted said base plate when the intensity of reflecting plate is suitable.
Said LED light emitting source 5 is for LED lamp bar and be provided with at least one, and said LED lamp bar is arranged at the side edge of the illuminating part of said light softening structure side edge and LED lamp bar corresponding to said space 3.
Said leaded light point 21 is made up of printing ink.
LED planar light source of the present invention can be a shape square or that other are possible.
The foregoing description is merely the illustrative principle of the invention and effect thereof, but not is used to limit the present invention.Rights protection scope of the present invention should be listed like claims.
Claims (6)
1. LED planar light source; It is characterized in that: comprise reflecting plate (2), diffuser plate (4), LED light emitting source (5) and frame (6); Said reflecting plate (2) has two relative surfaces and is respectively reflecting surface and the back side; Be printed with some leaded light points (21) on the reflecting surface of said reflecting plate; Said diffuser plate (4) is positioned at the side that said reflecting plate (2) has reflecting surface, and has space (3) between said diffuser plate (4) and the said reflecting surface, and said reflecting plate (2), space (3) and the diffuser plate (4) that is printed with leaded light point forms light softening structure; Said light softening structure is in said frame (6) is fixed at its lateral edges place, and said LED light emitting source (5) is arranged in the said frame (6) and is positioned at the side edge of said space (3).
2. LED planar light source as claimed in claim 1 is characterized in that: except a side that is provided with LED light emitting source (5), all the other inboards all are provided with reflector plate (7) in the inboard of said frame (6).
3. LED planar light source as claimed in claim 1 is characterized in that: also be provided with base plate (1), said base plate (1) is superimposed in the back side of said reflecting plate (2), and said base plate (1) is in its side edge is fixed in said frame (6).
4. LED planar light source as claimed in claim 1 is characterized in that: said LED light emitting source (5) is a LED lamp bar.
5. LED planar light source as claimed in claim 4 is characterized in that: said LED lamp bar is provided with at least one, and said LED lamp bar is arranged at the side edge of the illuminating part of said light softening structure side edge and LED lamp bar corresponding to said space (3).
6. LED planar light source as claimed in claim 1 is characterized in that: said leaded light point (21) is made up of printing ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100974264A CN102635798A (en) | 2012-04-05 | 2012-04-05 | LED plane light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100974264A CN102635798A (en) | 2012-04-05 | 2012-04-05 | LED plane light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102635798A true CN102635798A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100974264A Pending CN102635798A (en) | 2012-04-05 | 2012-04-05 | LED plane light source |
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| Country | Link |
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| CN (1) | CN102635798A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180289A (en) * | 2014-08-20 | 2014-12-03 | 昆山市诚泰电气股份有限公司 | Flat lamp with functions of illumination and indication after power failure |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
| WO2021036822A1 (en) * | 2019-09-01 | 2021-03-04 | 王定锋 | Embedded long strip-shaped flexible panel lamp and manufacturing method therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3139677U (en) * | 2007-11-19 | 2008-02-28 | 雄久 斉藤 | Luminescent panel device |
| CN101684926A (en) * | 2008-09-26 | 2010-03-31 | 上海莹亮照明科技有限公司 | LED light guide plate |
| CN201909231U (en) * | 2010-10-18 | 2011-07-27 | 丰铁流 | Polygonally pyramidal LED diffuse reflection backlight |
| CN201954377U (en) * | 2010-11-23 | 2011-08-31 | 深圳帝光电子有限公司 | Direct illumination-type ultrathin LED backlight module and display terminal |
| CN202521325U (en) * | 2012-04-05 | 2012-11-07 | 昆山市诚泰电气股份有限公司 | LED planar light source |
-
2012
- 2012-04-05 CN CN2012100974264A patent/CN102635798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3139677U (en) * | 2007-11-19 | 2008-02-28 | 雄久 斉藤 | Luminescent panel device |
| CN101684926A (en) * | 2008-09-26 | 2010-03-31 | 上海莹亮照明科技有限公司 | LED light guide plate |
| CN201909231U (en) * | 2010-10-18 | 2011-07-27 | 丰铁流 | Polygonally pyramidal LED diffuse reflection backlight |
| CN201954377U (en) * | 2010-11-23 | 2011-08-31 | 深圳帝光电子有限公司 | Direct illumination-type ultrathin LED backlight module and display terminal |
| CN202521325U (en) * | 2012-04-05 | 2012-11-07 | 昆山市诚泰电气股份有限公司 | LED planar light source |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180289A (en) * | 2014-08-20 | 2014-12-03 | 昆山市诚泰电气股份有限公司 | Flat lamp with functions of illumination and indication after power failure |
| CN104180289B (en) * | 2014-08-20 | 2016-04-20 | 昆山市诚泰电气股份有限公司 | There is the flat lamp of power-off back lighting and deixis |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
| WO2021036822A1 (en) * | 2019-09-01 | 2021-03-04 | 王定锋 | Embedded long strip-shaped flexible panel lamp and manufacturing method therefor |
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Application publication date: 20120815 |